12V Starter Motor 129908-77010 Compatible with 4TNV94/4TNV98, 4D94E/4D98E Engine Power System
The 129908-77010 Starter Motor is a high-performance 12V starter motor used in diesel engine starting systems. It converts battery electrical energy into mechanical energy to drive the engine flywheel, aiding in rapid engine starting. Designed for industrial, construction, and engineering machinery, this starter motor's stable torque output and durable construction ensure reliable starting performance under various operating conditions.
| Part Number | 129908-77010 |
| Type | Starter Motor |
| Voltage | 12V |
| Power | 2.2KW |
| Number of Teeth | 9T |
| Replacement Models | 129908-77010, 12990877010, 0399501102, 0399501103, 0399501103, 0399501203, 980535092, 0399C54249 |
| Applicable Engines | 4TNV94L / 4TNV98, 4D94E / 4D98E |
| Installation Location | Engine starting system, engaging with flywheel |
Features and Benefits
High Compatibility: Compatible with multiple Yanmar and Komatsu engine models, supports OEM replacement.
Stable Starting: Standard 12V design provides ample output torque for rapid engine starting.
Durable and Reliable: Utilizes high-quality materials and precision manufacturing processes, offering strong vibration resistance and suitable for heavy machinery operations.
Wide Applications: Suitable for excavators, loaders, and other construction machinery.
Installation and Usage Recommendations
Disconnect the battery before installation for safety.
Inspect the flywheel ring gear and mounting surfaces for cleanliness and freedom from debris.
Tighten the mounting bolts to the manufacturer's recommended torque.
Verify the power wiring to ensure correct polarity.
After initial start-up, check for any abnormal noises or vibrations.
129908-77010 Close-up of Starter Motor Rear Cover and Bearing
129908-77010 Front View of Starter Motor
12V Starter Motor Housing Details
Close-up of Starter Motor Terminals, showing positive and negative terminals
Yanmar engine starting system 129908-77010 starter motor installation location
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Frequently Asked Questions
Q1: What is your main products?
A1: We are specialized in the excavator engine spare parts, for example Main cylinder block, cylinder head, crankshaft, Engine assembly, piston, cylinder liner, piston ring, camshaft, connecting rod, oil pump, water pump, valve series products, movement, etc. almost all parts of the entire engine.
Q2: Do you test all products before shipping?
A2: Yes, we conduct 100% testing before shipping.
Q3: Which engine models is this Starter Motor compatible with?
A3: This product is designed for specific diesel engine models. If you can provide the engine model or original part number, we can confirm compatibility before shipping to avoid incompatibility issues.
Q4: Can you provide cross-reference information for OEM part numbers?
A4: Yes, we support original part interchange. Please provide the original part number, and we will verify the replacement part accordingly.
Q5: What should I do if there is a problem with the product?
A5: Our products undergo professional testing and are of very stable quality. If you do find any problems, please contact us. We have a professional after-sales team to help you solve the problem.
Why Choose Us?
• Over 20 years of experience specializing in construction machinery, engines, and parts – with stable experience supplying mainstream brands and models.
• Extensive experience in model matching enables us to provide customers with accurate parts selection, reducing procurement risks.
• A long-term, stable, and reliable supply system ensures reliable product sourcing and meets continuous procurement needs.
• For product information or quotations, our professional team will provide you with detailed answers immediately upon receiving your request.
